Launch Date
IRS – 1D was launched on September 27, 1997 by PSLV – C1. IRS – 1D, a follow on satellite to IRS – 1C belongs to the second generation of IRS series of Satellites. It has 3 payloads viz., PAN, LISS 3 & WiFS.

It has similar capabilities as IRC – 1C in terms of spatial resolution, spectral bands, stereoscopic imaging, wide field coverage and revisit capability. The improvements carried out in the IRS – 1D satellite taking into account the
IRS – 1C experiences have resulted in better quality imageries.

Mission completed during January 2010 after serving for 12 years and 3 months.
Mission Operational Remote Sensing
Weight 1250kg
onboard power 809 Watts (generated by 9.6 sq.metres
Solar Panels)
Communication S-band, X-band
Stabilization Three axis body stabilized (zero momentum) with 4 Reaction Wheels, Magnetic torquer
RCS Monopropellant Hydrazine based with sixteen
1 Newton thrusters & one 11 N thrusters
Payload Three solid state Push Broom Cameras:
PAN (6 metre solution )
LlSS-3 (23.6 metre resolution) and
WiFS (189 metre resolution)
Onboard tape recorder Storage Capacity : 62 G bits
Launch date 27 September 1997
Launch site SHAR Centre Sriharikota India
Launch vehicle PSLV-C1
Orbit (nomial) 817 km Polar Sun-synchronous
Achieved orbit 740 x 817 km
Inclination 98.6 o
Local time 10.30 a.m. (descending node)
Mission completed on January 2010
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